Overhead traveling crane.



C. L. TAYLOR.

OVERHEAD TRAVBLING CRANE.

APPLICATION FILED AUG. 2o. 1909.

Patented Aug. 30, 1910.

W/ 'f/VESSES www j INVENTOR UNITED STATES PATENT OFFICE.

CLARENCE L. TAYLOR, OF ALLIANCE, OHIO, ASSIGNOR T0 THE MORGAN ENGINEERING COMPANY, 0F ALLIANCE, OHIO.

OVERHEAD 'riamvnrlnae,` CRANE.

Specification of Letters Patent.

Patented Aug. 30, 1910.

To all whom it may concern:

Be it known that I, CLARENCE L. TAYLOR, of Alliance, in the county of Stark and State of Ohio, have invented certain new and useful Improvements in Overhead Traveling Cranes; and I do hereby declare the following to be a full, clear, and'exact description of the invention, such as` will enable others skilled in the art to which it ap ertains to make and use the same.

v y invention relates to i`m rovements in overhead traveling cranes, an it consists in mounting the travel motor and lfgearing for the bridge, on the bridge trucks or on a sup ort carried bythe latter.

y invention further consists in mounting vthe bridge on pivoted truck frames, and supl porting the travel motor and gearing di! rectly or indirectly on said pivoted frames.

In the accom anying drawings, Figure 1 is a view in encl),elevat1on of a crane ridge embodying my invention and Fig. 2 is a view 1n section on the line a1, of Fig. 1.

lso

The traveling bridge comprises two end carriages 1 (only one of which is shown) and glrders 3 connecting the end carriages.

In the drawings I have shown a bridge for a ladle crane with four main girders 3 on which the main trolley travels, the hoist cables from the trolley (not shown) assin down between each air of girders. Fwoul have it understood liowever that the invention ma be applied to bridge having but two gir ers on which the main trolley-trav;v

els, hence I do not confine my invention to an particular construction of bridge.

he ends of the end .carriages are reduced in depth at their ends asA shown at 4, and secured to the underside of each reduced end is the bearing 5 to which the bridge carrying trucks are pivotally connected. Each carrying truck comprisesone compensating frame 8 to which the bridge is pivoted, and two wheel trucks 9 to which the ends of the compensating frame is pivoted. There .isY

top surfaces of the rails on which they travel so .that in the event of breakage of any of the wheels or truck frames, or truck wheel axles, the safety shoes will make contact with the rails and support the parts, and prevent derailment of any of the trucks..

The compensating frames 8 are leach provided with a lfixed or inte ral 'seat 13, lol cated over the pivoted bearings of the outer wheel truck 9 at each corner of the bridge. The two seats 13 at opposite ends of the bridge constitute supports for the girder 13,

which latter exten lengthwise the bridge parallel with the main girder thereof and connects the compensating frames at the opposite ends of the bridge. This girder 13a forms a support for the bridge drive shaft 14 and motor 15, the latter bem preferably located `at or near the center 0% the girder 13, and also forms a foot walk from one end `of the crane to .the other.

The shafts `14 may be the armature shafts as shown, or they may be coupled up to the armature shafts, and each carries at each end a pinion4 16 meshing with a larger toothed wheel 17, mounted on a shaft 18 coincident with 'bearing 11 of the wheel trucks-9. These shafts 18 each carry a smaller pinion 19 meshing with the4 drive pinion 20'Iixed tothe axles of the truck wheels 10. By this v arrangement the trucks at'theopposite sides and ends of the bridge are positively driven, and as the drive motors are carried` on the compensating frames and l are concentric with the axesof the wheel trucks, it follows that the several wheel trucks can follow any inequalities in the track, without binding or straining the motors or gearing and without any danger of disengagement of any of wheels o the drive gearing:

As shown in Fig. 1 t e compensating frames at the rear of the bridge may also carry a girder 13a and a motor, and gearing may be provided on this rear girder 13 for propelling the rear wheels. By this ari rangement the wheels of the four trucks will be positively driven. Again if desired the track wheels of the inner sets of trucks may j be eiared upto. the wheels of the outer truc by gear wheel-21* as shown in Fi 1 so thatall the wheels of each truck wi be drivin wheels. Again while I .have descri each truck las bein mounted on Atwo flanged track wheels', it 1s elearlyevident 4uns kwit-h wheel trucks arranged in ment of parts shown and described without v dprting from the spirit and scope of my invention hence I would have it understood that I do not wish to conne myselfl to the exact construction and arrangement of partsl shown but,

Having fully described my invention what I claim as new' and desire to secure by Let' ters-Patent, is

l. In a traveling crane,` the combination airs, and a compensating frame for each pair of trucks, each compensating frame being pivotally connected at its ends to its trucks, of a bridge pivotally supported at its two ends on said compensating frames, drive motor and `gearing and means connected with a compensating frame and supporting said motor.

2. In a traveling crane, the combination with wheel trucks arranged in four pairs, and a compensating frame pivotally connecting each pair of wheel truck frames, of a bridge pivotally mounted on the series of compensating frames, and a drive motor and gearing mounted on the compensating frames at each side ofthe bridge.

3. In a traveling crane, the combination with a bridge, of a compensating frame to which the bridge is pivotally connected, and a pair of Wheel trucks pivotally supporting said com ensating frame, of a drive motor, carriedv gearing y connecting said motor with the truck wheels.,

4. In a traveling crane the combination with a crane bridge, compensating frames on which the bridge is mounted, and a pair of y said compensating frame and trucks carrying each compensating frame, of ay motor supported independentlyv of the crane bridge, and gearinglconnecting Said motor with the wheels of a truck.

5. In a traveling crane, the combination with a crane bridge, compensatingframes pivotally supporting said bridge, and a pair of trucks foreach compensating frame, of means connecting two compensating frames on the sameside of the crane, a motor carried by said'connecting means, and gearing connecting said motor with the wheels of a truck on the same side of the crane.

6. In a traveling crane the combination with a crane bridge, four compensating frames, one adjacent each corner of the bridge and pivotally supporting the latter, and a pair of trucks for each compensating frame, eachframe being journaled to its trucks, of means connecting the two compensating frames on the same side of the bridge,

`a motor carried by-said connecting means and gearing connecting said motor and a truck wheel.

7 In a traveling crane, the combination with a crane bridge, four compensating frames, one adjacent each corner of the bridge and pivotally supporting the latter, and a pair of trucks for each compensating frame, each frame beingA pivotally supported on its trucks, of means connecting the two compensating frames at each side'ot1 the bridge, a motor carried by each of said connecting means and gearing connecting each motor and a truck wheel.

.oIn testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

CLARENCE L. TAYnoR. Witnesses: i

N. C. Fnrrnns, D. GSOHULTZ. 

